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 * This file is available and licensed under the following license:
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 * modification, are permitted provided that the following conditions are met:
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 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *
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 *     max be used to endorse or promote products derived from this software
 *     without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// origial author Sergey A. Malenkov
// modified by CharmGil
package cubechart;

import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.scene.Cursor;
import javafx.scene.CustomNode;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.effect.PerspectiveTransform;
import javafx.scene.paint.Color;
//import javafx.scene.shape.Arc;
//import javafx.scene.shape.ArcType;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Line;
import javafx.scene.shape.Polygon;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
//import javafx.stage.Alert;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
//import javay.swing.JFileChooser;
import java.lang.Math;
import javafx.scene.input.KeyEvent;


// Config
def FACE_WIDTH = 250;
def FACE_HEIGHT = 250;

def r = 250;
def d = r + r;

// global var
var dragEnabled = false;

//def chooser = new JFileChooser();

class Point {

    var x: Number;
    var y: Number;
    var z: Number;

    function rotateX(cos, sin) {
        var tmp = cos * y - sin * z;
        z = cos * z + sin * y;
        y = tmp;
    }

    function rotateY(cos, sin) {
        var tmp = cos * x + sin * z;
        z = cos * z - sin * x;
        x = tmp;
    }

    function rotateZ(cos, sin) {
        var tmp = cos * x - sin * y;
        y = cos * y + sin * x;
        x = tmp;
    }

}

class Face extends CustomNode {

    var number: Integer;
    var ul: Point;
    var ur: Point;
    var lr: Point;
    var ll: Point;
    var background = Color.web("#7ba4cb");
    var foreground = Color.web("#3b3396");
    var error = true;
    def z = bind ul.z + ur.z + lr.z + ll.z;
    var start: Number;
    var length: Number;
    def animation = Timeline {
                repeatCount: Timeline.INDEFINITE
                keyFrames: [
                    at (0s) {start => 90; length => 0},
                    at (2s) {start => 90; length => 360},
                    at (4s) {start => 450; length => 0}
                ]
            }
    def animate = bind z > 0 and error on replace old {
                if (animate != old) {
                    if (animate) {
                        animation.play()
                    } else {
                        animation.pause()
                    }
                }
            }

    override function create() {
        def pt = PerspectiveTransform {
                    ulx: bind d + ul.x
                    uly: bind d + ul.y
                    urx: bind d + ur.x
                    ury: bind d + ur.y
                    lrx: bind d + lr.x
                    lry: bind d + lr.y
                    llx: bind d + ll.x
                    lly: bind d + ll.y
                }
        Group {
            visible: bind z > 0
            content: [
                Polygon {
                    points: bind [
                        pt.ulx,
                        pt.uly,
                        pt.urx,
                        pt.ury,
                        pt.lrx,
                        pt.lry,
                        pt.llx,
                        pt.lly
                    ]
                    cursor: Cursor.HAND
                    blocksMouse: true

                    onMouseClicked: function(event) {
                        ax = 0.0;
                        ay = 0.0;
                    }

                    onMouseDragged: function(event) {
                        if( dragEnabled == true ){
                            //dragEnabled = false;
                            if( Math.abs( event.dragX ) > Math.abs( event.dragY ) ){
                                ax = if (-5 < event.dragX and event.dragX < 5) then 0 else event.dragX / 10000;
                            }else{
                                ay = if (-5 < event.dragY and event.dragY < 5) then 0 else -event.dragY / 10000;
                            }
                        }//if( dragEnabled == true )
                    }
//                    onKeyPressed: function(e: KeyEvent): Void {
//                        if( e.code ==  )
//                    }
                },
                Group {
                    effect: pt
                    visible: bind error
                    content: [
                        Rectangle {
                            x: -FACE_WIDTH / 2
                            width: FACE_WIDTH
                            y: -FACE_HEIGHT / 2
                            height: FACE_HEIGHT
                            fill: bind background
                            stroke: bind foreground
                            strokeWidth: 2
                        },
                        Circle {
                            centerX: 0
                            centerY: 0
                            radius: 85
                            fill: bind foreground
                        },
                        Circle {
                            radius: 80
                            fill: Color.web("#b6c768")
                        },
                        Circle {
                            radius: 70
                            fill: Color.web("#645f37")
                        },
                        Circle {
                            radius: 65
                            fill: bind background
                        },
                        Text {
                            x: -34
                            y: 40
                            content: bind "{number}"
                            fill: bind foreground
                            font: Font {
                                size: 120
                                embolden: true
                            }
                        }/*,
                        Arc {
                            radiusX: 80
                            radiusY: 80
                            startAngle: bind start
                            length: bind length
                            type: ArcType.ROUND
                            opacity: 0.2
                        }*/
                    ]
                }
            ]
        }
    }

}


// coordination calc
var ay = 0.000;
def cy = bind Math.cos(ax);
def sy = bind Math.sin(ax);

var ax = -0.000;
def cx = bind Math.cos(ay);
def sx = bind Math.sin(ay);


def ful = Point {
            x: -r
            y: -r
            z: r
        }
def fur = Point {
            x: r
            y: -r
            z: r
        }
def flr = Point {
            x: r
            y: r
            z: r
        }
def fll = Point {
            x: -r
            y: r
            z: r
        }
def bul = Point {
            x: bind -ful.x
            y: bind -ful.y
            z: bind -ful.z
        }
def bur = Point {
            x: bind -fur.x
            y: bind -fur.y
            z: bind -fur.z
        }
def blr = Point {
            x: bind -flr.x
            y: bind -flr.y
            z: bind -flr.z
        }
def bll = Point {
            x: bind -fll.x
            y: bind -fll.y
            z: bind -fll.z
        }

def f1 = Face {
            number: 1
            ul: ful
            ur: fur
            lr: flr
            ll: fll
        }
def f2 = Face {
            number: 2
            ul: flr
            ur: fur
            lr: bll
            ll: bul
        }
def f3 = Face {
            number: 3
            ul: bur
            ur: fll
            lr: flr
            ll: bul
        }
def f4 = Face {
            number: 4
            ul: bll
            ur: fur
            lr: ful
            ll: blr
        }
def f5 = Face {
            number: 5
            ul: bur
            ur: blr
            lr: ful
            ll: fll
        }
def f6 = Face {
            number: 6
            ul: bur
            ur: bul
            lr: bll
            ll: blr
        }



Stage {
    title: "CubeChart Alpha"
    style: StageStyle.TRANSPARENT
    resizable: false
    scene: Scene {
        fill: null
        width: d + d
        height: d + d
        content: [ f1, f2, f3, f4, f5, f6 ]
    }
}
def rotation = Timeline {
            repeatCount: Timeline.INDEFINITE
            keyFrames: KeyFrame {
                time: 20ms
                action: function() {
                    if (ay != 0) {
                        ful.rotateX(cx, sx);
                        fur.rotateX(cx, sx);
                        flr.rotateX(cx, sx);
                        fll.rotateX(cx, sx);
                    }
                    if (ax != 0) {
                        ful.rotateY(cy, sy);
                        fur.rotateY(cy, sy);
                        flr.rotateY(cy, sy);
                        fll.rotateY(cy, sy);
                    }
                    if( f1.z == 1000.0 or f2.z == 1000.0 or f3.z == 1000.0 or
                        f4.z == 1000.0 or f5.z == 1000.0 or f6.z == 1000.0 ){
                        ax = 0;
                        ay = 0;
                        //dragEnabled = true;
                    }

                    println( f2.z );
                }
            }
        }


dragEnabled = true;
rotation.play();   // enable rotation

